/*
 *  Copyright 2004 Blandware (http://www.blandware.com)
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.blandware.atleap.common.parsers.html;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * <p>Tags</p>
 * <p><a href="Tags.java.html"><i>View Source</i></a></p>
 * <p>This code is taken from Apache lucene demo</p>
 * <p/>
 *
 * @author Andrey Grebnev <a href="mailto:andrey.grebnev@blandware.com">&lt;andrey.grebnev@blandware.com&gt;</a>
 * @version $Revision: 1.1 $ $Date: 2005/03/26 14:26:03 $
 */
public final class Tags {

    /**
     * contains all tags for which whitespaces have to be inserted for proper tokenization
     */
    public static final Set WS_ELEMS = Collections.synchronizedSet(new HashSet());

    static {
        WS_ELEMS.add("<hr");
        WS_ELEMS.add("<hr/");  // note that "<hr />" does not need to be listed explicitly
        WS_ELEMS.add("<br");
        WS_ELEMS.add("<br/");
        WS_ELEMS.add("<p");
        WS_ELEMS.add("</p");
        WS_ELEMS.add("<div");
        WS_ELEMS.add("</div");
        WS_ELEMS.add("<td");
        WS_ELEMS.add("</td");
        WS_ELEMS.add("<li");
        WS_ELEMS.add("</li");
        WS_ELEMS.add("<q");
        WS_ELEMS.add("</q");
        WS_ELEMS.add("<blockquote");
        WS_ELEMS.add("</blockquote");
        WS_ELEMS.add("<dt");
        WS_ELEMS.add("</dt");
        WS_ELEMS.add("<h1");
        WS_ELEMS.add("</h1");
        WS_ELEMS.add("<h2");
        WS_ELEMS.add("</h2");
        WS_ELEMS.add("<h3");
        WS_ELEMS.add("</h3");
        WS_ELEMS.add("<h4");
        WS_ELEMS.add("</h4");
        WS_ELEMS.add("<h5");
        WS_ELEMS.add("</h5");
        WS_ELEMS.add("<h6");
        WS_ELEMS.add("</h6");
        WS_ELEMS.add("<title");
        WS_ELEMS.add("</title");
    }
}
